47 CFR §20.11

1. (a)A local exchange carrier must provide the type of interconnection reasonably requested by a mobile service licensee or carrier, within a reasonable time after the request, unless such interconnection is not technically feasible or economically reasonable. Complaints against carriers under section 208 of the Communications Act, 47 U.S.C. 208, alleging a violation of this section shall follow the requirements of §§ 1.711-1.734 of this chapter, 47 CFR 1.711-1.734.
2. (b)Local exchange carriers and commercial mobile radio service providers shall exchange Non-Access Telecommunications Traffic, as defined in § 51.701 of this chapter, under a bill-and-keep arrangement, as defined in § 51.713 of this chapter, unless they mutually agree otherwise.
3. (c)Local exchange carriers and commercial mobile radio service providers shall also comply with applicable provisions of part 51 of this chapter.
4. (d)Local exchange carriers may not impose compensation obligations for traffic not subject to access charges upon commercial mobile radio service providers pursuant to tariffs.
5. (e)An incumbent local exchange carrier may request interconnection from a commercial mobile radio service provider and invoke the negotiation and arbitration procedures contained in section 252 of the Act. A commercial mobile radio service provider receiving a request for interconnection must negotiate in good faith and must, if requested, submit to arbitration by the state commission.